Description: brand new and high quality. Feature: It can protect mobile phone from radiation, save mobile phone electricity, contain negative ion energy. The use of special materials to absorb and transfer electromagnetic radiation wave, so as to reduce the damage of cell phone radiation to the human brain. Extend the standby for time of mobile phone by 0.5-2 times. Restoring the capacity of old rechargeable batteries and prolonging the life of batteries. Phone Sticker only, other accessories demo in the picture is not included! Specifications: Item Type: Phone Sticker Material: Nano-anion Silicone Size: Diameter: 28mm/1.1in Color: Silver, Gold Shape: Round Ions Content: 1800-2200 Quantity: 1 Pc Instructions: 1.Remove the radiation-protective patch backing paper, glue it on the side of the antenna near the mobile phone (adhere to this site to reduce the emissivity above 90%), and paste it on the mobile phone battery (use this Paste can reduce the emissivity of about 60%-70%, and at the same for time can restore the battery capacity and extend the standby for time, the characteristics of double-effect is adopted by most people. 2.When sticking on the battery, pay attention to avoid the electrode, the battery is positive and the back can be pasted. 3.Radiation for protection patch can be cut according to the required size. Shearing does not affect product functionality. However, when it is pasted on the battery, it must cover more than 70% of the area of the battery. Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Phone Sticker 1 x User Manual